Power Systems Critical visual voltage is the voltage at which corona is visible with blue or violet colour corona is just initiated None of these both 1 and 2 corona is visible with blue or violet colour corona is just initiated None of these both 1 and 2 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following faults is/are treated as external faults? All of these Failure of prime mover of the generator Over voltage Failure of excitation All of these Failure of prime mover of the generator Over voltage Failure of excitation ANSWER DOWNLOAD EXAMIANS APP
Power Systems Installation of capacitors at suitable locations and of optimum size in a distribution system results in reduction of KVA rating of distribution transformers reduction in distribution power loss All of these improved voltage regulation reduction of KVA rating of distribution transformers reduction in distribution power loss All of these improved voltage regulation ANSWER DOWNLOAD EXAMIANS APP
Power Systems The flow duration curve at a given head of a hydroelectric plant is used to determine total power available at the site. total units of energy available. diversity factor for the plant. load factory at the plant. total power available at the site. total units of energy available. diversity factor for the plant. load factory at the plant. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 3 core cable gives on test a capacitance of 3.7 µF between two cores. Find the line charging current of the cable when it is connected to 11 kV, 50 Hz system? 1 A. 14.76 A. 14.7 mA. 1.476 A. 1 A. 14.76 A. 14.7 mA. 1.476 A. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A transmission line has surge impedance of 400 Ω, operating at Vs = Vr = 400 kV line is compensated with a shunt capacitance of 30%. Find the surge impedance loading with compensation? 456 MW 400 MW 478 MW 386 MW 456 MW 400 MW 478 MW 386 MW ANSWER DOWNLOAD EXAMIANS APP
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